Silver burnishing machine



May 30, 1933. F. c. GOOD SILVER BURNISHING MACHINE 2 Sheets-Sheet i Filed March 3, 1932 |1|l||||11|IlL May 30, 1933. Q OD 1,911,312

SILVER BURNISHING MACHINE Filed March 3. 1932 2 Sheets-Sheet 2 Patented May 30, 1933 UNITED STATES FREDERICK C. GOOD, OF PHILADELPHIA, PENNSYLVANIA SILVER BURNISHING MACHINE Application filed March 3, 1932'. Serial No. 596,655.

This invention relates to new and useful improvements in burnishing machines and particularly to machines for burnishing silverware and like articles.

One object of the invention is to provide a machine of the character set forth for burnishing hotel and restaurant table silverware in a relatively rapid and efficient manner.

Another object of the invention is to provide a device of the character set forth hav ing a novel construction permitting discharge of the articles being burnished therein from the machine without the handling thereof by the operator.

Other features and details of the invention are set forth in detail hereinafter and shown .in the accompanying drawings in which:

Figure 1 is a view in plan of the device constituting the invention;

Fig. 2 is a side elevation of the disclosure in Fig. 1;

Fig. 3 is an end elevation of the device disclosed in Fig. 1; and

Fig. 4 is a view in plan of the burnishing machine showing the barrel thereof in position ready to discharge the material being burnished therein.

The present invention is constructed and adapted for use in public dining rooms,such as hotels and restaurants wherein the large number of pieces of table silverware must be cleaned very often. To clean the pieces of silverware in institutions of the above character thoroughly and as often as should be, would require continuous labor on the part of the employees thereof. By the present invention a silverware burnishing machine is provided which may be capable of cleaning a large number of pieces of metal in a relatively short period of time and with substantially greater efficiency, thus effecting an economic saving in time and labor which would otherwise be expended should the silverware of large institutions, such as described, be cleaned by manual labor.

Referring now more particularly to the drawings, a device made in accordance with the present invention, comprises 'a base 1 having a vertical support 2 secured theron, which is provided with a rearwardly extending bracket 3, rigidly secured thereto.

A motor or other suitable source of power 4 having a shaft 5v is rigidly mounted upon the support 3, the said shaft being support- I ed by means of a split bearing 6. A sprock-' et wheel 7 is mounted at the outer extremity of the shaft 5 and arranged for rotation therewith. The split or sleeve bearing 6 is provided with a bolt 8 by means of which the pressure of the said bearing 6 upon the shaft 5 may be regulated.

A housing 9 constituting in effect a support arm for a barrel .10, is pivotally mounted at the extremityof the shaft 5 as shown in Fig. 2 of the drawings, the said housing 9 comprising in the present instance a vertical portion'9a,terminating in a horizontally extending portion 9?). The sprocket wheel 7 rigidly mounted at the extremity of the motor shaft 5 resides within the housing 9. A roll chain 11 passes about the sprocket 7 and similarly about a second sprocket 12 likewise residing within the. vertical portion 9a of the housing 9 adjacent the radial extremity thereof and rigidly mounted upon a horizontally disposed shaft 13. The shaft 13 extends through a sleeve 14 to a housing 15, the said shaft 13 having a suitable worm gear 16 mounted thereon within said housing 15 and arranged for rotation with the aforementioned shaft 13.

The rotatable tumbling barred or container 10 is provided with a cover 17 and locking clamp 18, the said barrel 10 being mounted on the upper surface of the housing 15 and arranged for rotation with respect thereto on a spindle 19 keyed to the said barrel 10 as at 20, the said spindle 19 having a worm wheel 21 adjacent the lower end thereof in meshed relation with the driving worm 16. It is desirable further to provide the rotatable barrel 10 and the cover 17 with a suitable lining ofwood or other material 10a.

It should be noted that the casing or arm 9 may be swung about the extremity of the shaft 5 so that the barrel orcontainer 10 may assume a horizontal position as disclosed in Fig. 4 of the drawings to more effectively burnish the silver contained therein and to permit the burnished silver to be discharged therefrom when sufliciently cleaned.

In the operation of the machine, the cover 17 is removed and the silverware, such as knives, forks and spoons, is placed in a tumbling barrel 10 together with a suflicient amount of water and/or any suitable compound Which will burnish the silver. The cover 17 is then looked in position by means of the clamp 18 and the motor then rotates the barrel 10 through the chain gear 11, the Worm l6 and worm Wheel 21. WVhen suificient .time has elapsed for the proper burnishing of the material contained in the barrel, thecover 17 is removed and the arm or chain gear housing 9 is pivoted on the shaft 5 to a horizontal position to permit discharge of the contents from the tumbling barrel. WVhen the contents have been thus discharged from the barrel the arm or housing 9 is returned to the vertical position as shown in Fig 2 and the burnishing opera tion may be repeated in a similar manner,

with uniform effectiveness.

lVhile the particular embodiment of the invention has been disclosed in the accompanying drawings and set forth in detail hereinbefore, it is not intended that the structure belimited as described, except as set forth in the appended claim.

What'is claimed is:

.An apparatus of the characterv described, comprising a source of power, a shaft driven thereby, a support in the form of an L- shaped housing having one arm thereof pivotally mounted on one end of the shaft, a spindle rotatably mounted in the other arm of the housing, a barrel'mounted on said spindle and arranged for rotation therewith, and driving means wholly encased in said housing including a chain and, sprockets operatively connected to the shaft and the spindle for imparting rotation to the barrel irrespective of the position of the support.

FREDERICK C. GOOD. 

